Ответ:2(x-y)-9(x-y)=
2x-2y-3x-3y=
2x(-4,5)-2y(-4,5)=
2x-2y=
2(x-y)
Объяснение:
:P
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Ответ:2(x-y)-9(x-y)=
2x-2y-3x-3y=
2x(-4,5)-2y(-4,5)=
2x-2y=
2(x-y)
Объяснение:
:P